| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Mack Oil Corp | Oil & Gas Operator | Nov 1998 | |
| 2 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 3 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Jun 2026 |
| 4 | Muskegon Development Company | MT Pleasant, MI 48858 | Oil & Gas Operator | Jun 2026 |
| 5 | Muskegon Operating Company LLC | Oil & Gas Operator | Apr 2026 | |
| 6 | Muzyl Oil Corp | Oil & Gas Operator | Apr 2026 |